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Using toothpicks, straws, or tubes of rolled up newspaper, learners create 3-dimensional models to illustrate the basic structure and function of the cell membrane, and place an object inside to repre

In this activity (on pages 12-15), learners make a crater model and test the effects of weather (rain) on its surface.

This activity (on pages 23-27) lets learners simulate the work of scientists who take core samples of Earth's rocky layers to determine geological history.

Learners investigate a pre-constructed mystery tube to determine its interior mechanism.

In this activity, learners explore the "nuts and bolts" of gene chips.

Learners build models of sinkholes to gain an intuitive knowledge of their physical aspects.

This activity was designed for blind learners, but all types of learners can have a tactile opportunity to construct a karyotype, an organized model of an organism’s chromosomes, conveying the chromos

This activity (on pages 24-29) combines science and art to introduce learners to how different animal pollinators spread pollen from one plant to another, and how certain shapes, colors, and smells of

This activity (on pages 13-18) has learners build a model tree and then figure out how to make their tree stand up by itself.